For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningSeat Belt Latch Stop Installation
Preliminary Procedure
Locate the hole in the seat belt webbing where the original seat belt
stop button was located.
If the original hole in the seat belt webbing is not visible, perform
the following:
If either the right or left stop button is missing use the opposing seat
...
Steering Linkage Inner Tie Rod Replacement (Electronic Power Steering)
Special Tools
CH-6247 Removal and Installation Tool for the Steering Linkage Inner Tie Rod
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Raise and support the vehicle. Refer to Lifting and Jacking the
Vehicle.
Remove the tire and wheel assembly. Refer to ...
Servicing the Airbag-Equipped Vehicle
Airbags affect how the vehicle should be serviced. There are parts of the airbag
system in several places around the vehicle. Your dealer and the service manual
have information about servicing the vehicle and the airbag system.
WARNING
For up to 10 seconds after the vehicle is turned off and ...